4.8
5 votes

Upper Geyser Basin

Park Loop Rd, Mammoth, Wyoming 82190 USA

“the home of Old Faithful”

The Upper Geyser Basin, approximately two square miles in area, contains the largest concentration and nearly one-quarter of all of the geysers in the world. A variety of thermal features exist here: spouting geysers, colorful hot springs, and steaming fumaroles. The Upper Geyser Basin is the home of Old Faithful, the most famous and celebrated geyser in the world. The 1870 Washburn Expedition camped near Old Faithful and discovered the geyser had frequent and regular eruptions over 100 feet. They dubbed the geyser Old Faithful. It erupts once approximately every 45 to 90 minutes, depending on the duration of the previous eruption. To be able to predict your own eruption of Old Faithful refer to appendix A on page 115

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Reviewed by
Sarah Parent

  • 87 Reviews
  • 49 Helpful
August 31, 2014

Check out the Upper, Midway, and Lower Geyser Basins for a concentration of geysers, hot springs, and other geothermal phenomena. Old Faithful is justifiably famous, but there are many other beautiful geysers without the crowds in Yellowstone.

1 person found this review helpful

Reviewed by
jhart63

  • 6 Reviews
  • 0 Helpful
April 28, 2017
Rated 5.0

Don't miss Riverside Geyser and Grotto Geyser. Much more impressive than Old Faithful in my opinion. Nice hike from Biscuit Basin to Old Faithful where you can see both of these geysers and more.

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Reviewed by
jessicalovescooking

  • 17 Reviews
  • 2 Helpful
December 29, 2015
Rated 5.0

Great walk! Lots of easy paths with a river and tons of geysers! There was a steep hike to an overlook. We saw a coyote and buffalo. Nearby shopping at general stores and visitor center. Nearby food at a few restaurants.

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Upper Geyser Basin

Park Loop Rd
Mammoth, Wyoming
82190 USA

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